/Engine/Source/Runtime/Renderer/Public/MeshMaterialShader.h
FVertexFactoryShaderPermutationParameters ( EShaderPlatform InPlatform, const [FMaterialShaderParameters](API\Runtime\Engine\FMaterialShaderParameters) & InMaterialParameters, const [FVertexFactoryType](API\Runtime\RenderCore\FVertexFactoryType) * InVertexFactoryType, const [FShaderType](API\Runtime\RenderCore\FShaderType) * InShaderType, EShaderPermutationFlags InFlags )